Yeah, it's a good point that TLG probably doesn't want to swamp all their themes with dragons, but still, I hope they'll do something more with Macy than that weird Dragon Thing she got this year (as it looked rather underwhelming, at least on pics - maybe it's better in hand?)

You're welcome! I recently also began to shift my focus from sentient robots (where I mostly build TF OCs by now) to mechs, so it's inspiring to see other people's takes on mech designs.
On that note, how do you take Techfigs apart? I only know from my own experience that the legs and the head can be popped of (which reminds me, are there any other sockets that could take the Techfig-Head?), but it seems that some of your figs also lack the arms...

I also think that Macy could get a Dragon Mech, Ninjago and Elves nonwithstanding, simply because Ninjago's dragons are obviously based on eastern folklore style dragons, while the Elves dragons are more fairy-tale in their design. The dragon depicted on Macy's crest meanwhile is obviously a European style dragon, which would offer the potential for a build that would differ at least from the Ninjago dragons.

I think Macy could sell well with a bigger vehicle set, at least on the notion that Macy is red, a traditional heroic and popular color - not to mention that her associated animal is a friggin Dragon, which would lead to some pretty radical design concepts (like some huge Dragon-Mecha, or a Dragon-Jet, for example).
Most sets that featured her prominently flew over my head for either being too expensive or not all that appealing in terms of design (which was the case with her latest set).

Thanks to various members of our community, I also now saw the leaks.
- Seeing how much like an actual Land Raider Axl's tank looks like amuses me, but aside from that, it's probably a set I'll pass, as it will most likely be one of the most expensive sets of this wave.
- The Berserker Bomber looks pretty cool, I'm looking forward to finalized pics of it.
- Twinfector and Lance's weird... vehicle thing don't really appeal to me, except for the Spider Guy (mostly because of his helmet). I think I'll need some proper images to judge these two.
- My only gripe with Aaron's X-Bow is the gold. I think it looks really ugly next to the dark blue and lime green. The build itself looks great though.
- Finally, the Mech... my only issue with it is that the Mini-Mech inside it apparently still utilizes the HF hands, rather than those nifty new hands introduced with Mr. Freeze in the Batman Movie line (seriously LEGO, please give us those hands in some more colors!). Other than that, it's my favourite set of those leaks.
As for the "Ant Things", as DraikNova called them, I would've probably overlooked them as well. They seem to be small enough to be used as ammunition for stud shooters. I think they could be also used to great effect as decoration on larger MOCs.
Overall, I'm looking forward to these new sets. I'm only worried about the lack of small sets akin to the Ultimate sets or the mechs we got in previous years, but those sets look overall pretty nifty.

Man, it's been a while since I've seen anything utilizing the Tech Figs. I always liked those, so it's cool to see them return in some way.
I generally like the design of this MOC for how it blends elements from various series (if I'm not mistaken, I spot Hero Factory, Knights Kingdom and a bit of Ice Hockey in there?). Having also a Tech Figure in there is just icing on the top!

Ah, that reminds me of the discussions and rumored leaks when Super Smash Bros. for 3DS/Wii U was still in development. Or when some other guy made both in MIiverse and on YouTube claims about how he got a Smash 4 Port on the Switch.

While I like the Space Knight vibe of Nexo Knights and therefore wouldn't mind if it would get continued, I can understand that Classic Castle fans would prefer if it would be replaced.
In that regard, I wouldn't mind that as long as we'll get something else with a "Space Knight" Flavor - I would settle with something in the style of Classic Space, but with Space Marines and the like, though.

@legozebra Do you know if this book is also available in Germany? Then again, I could probably check for myself... what's the English title again?
As for this new pic... Jestro has purple hair, huh? Interesting.

Oh, I didn't thought of Tron, but yeah, this guy looks more Tron than Starcraft now. I mostly thought of Terran Marines due to the backpack and the visor-esque featureless helmet.
Yeah, I also got a 40k vibe from him. I think it's safe to say he's both 40k (chainsword, armor with shoulder pads, shield looks really Tau-like) and Transformers (design of the helmet, color scheme)
TLG did flirt with those designs though. They had a very Starcraft-esque Space Marine in the CMF line called Galaxy Patrol (and also something that looks like a Space Marine Ork called Alien Avenger, which gives off a slight 40k Ork vibe). And if look over to the more fantasy-themed things, some of the older Castle sets were somewhat reminiscent of Warhammer and Warcraft with the dwarves and the trolls/orcs.
Though then again, GW is somewhat infamous for not being fond of other companies making stuff that looks remotely similiar to their IPs, so expecting anything too 40k-ish might be unlikely (although then again, LEGO doesn't make tabletop miniatures, so...).
As for others, the Battle Mech had a slight Power Rangers feel to it.
So yeah, I think TLG could turn some of these concepts into actual sets without fearing for lawsuits left and right, I guess that, just like @K_Tiger said, LEGO simply doesn't want to make too many specialized molds, which is understandable (though I guess some of these could be re-used with some imagination). Alternatively, some of the designs might've been too grim for TLG's liking - I think that might be the case for the red demon-looking folks, which lack the comic relief quality of the year 1 baddies.
I still hold out hope for the Cyborks though. These would be awesome if they would actually happen.
btw, where can I purchase this book?